我通过javascript创建了一个<div>
,它的css中有display:hidden;
。我想使它成为一个块元素,但它不会出现。这是我的密码。
var fatGooseShop = document.createElement('div');
fatGooseShop.width = canvas.width / 1.5 + "px";
fatGooseShop.height = canvas.height / 1.5 + "px";
fatGooseShop.style.position = "absolute";
fatGooseShop.style.left = "50%";
fatGooseShop.style.top = "50%";
fatGooseShop.style.margin = "-" + (canvas.height / 1.5) / 2 + "px 0px 0px -" + (canvas.width / 1.5) / 2 + "px";
fatGooseShop.style.backgroundColor = "yellow";
fatGooseShop.style.display = "none";
function shop()
{
fatGooseShop.style.display = "block";
}
我从浏览器中调用
shop()
函数来运行它,如果这有区别的话。 最佳答案
首先需要附加元素
document.getElementById("test").appendChild(fatGooseShop);
没有内容,也没有实际设置块的宽度或高度,因此它将不可见。你需要修改你的代码如下。注意:如果
canvas.width
返回非零值
fatGooseShop.style.width = canvas.width / 1.5 + "px";
fatGooseShop.style.height = canvas.height / 1.5 + "px";
示例如下:
http://jsfiddle.net/DigitalBiscuits/cqbzw/6/